Roof Excess

Categories: Real Estate

Hi there,
I own a townhouse in Harlem, and my tenant want exclusive rights to the roof. He wants to build there a deck roughly 675 SF.
I do not know how much this exclusive right to the roof worth?
Is there any formula based on square footage to evaluate how much additional rent I need to charge.
Your thought are appreciated..

By zevel | 04/08/2008 11:18 AM